(57) A computerized system into which is fed the nominal values of a musical score, the
system acting to process these values with respect to the amplitude contour of individual
tones, the relative loudness of different tones in a succession thereof, changes in
the duration of the tones and other deviations from the nominal values which together
constitute the microstructure of the music notated by the score. The system yields
the specified tones of the score as modified by the microstructure, thereby imparting
expressivity to the music that is lacking in the absence of the microstructure.
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